Definition of Chemiosmosis

1. Noun. (chemistry) Any chemical reaction that occurs through an intervening semipermeable membrane, especially through a membrane in a biological cell ¹



¹ Source: wiktionary.com

Medical Definition of Chemiosmosis

1. A theoretical mechanism (proposed by Mitchell) to explain energy transduction in the mitochondrion. As a general mechanism it is the coupling of one enzyme catalysed reaction to another using the transmembrane flow of an intermediate species. For example Cytochrome oxidase pumps protons across the mitochondrial inner membrane and ATP synthesis is driven by re entry of protons through the ATP synthesising protein complex. The alternative model is production of a chemical intermediate species, but no compound capable of coupling these reactions has ever been identified. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

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Lexicographical Neighbors of Chemiosmosis

chemiexcitation
chemiexcitations
chemiflux
chemigation
chemigations
chemiglyphic
chemiloon
chemiloons
chemiluminescence
chemiluminescent
chemiluminescent labeling
chemin de fer
cheminformatics
chemiosmoses
chemiosmosis (current term)
chemiosmotic
chemiosmotic coupling
chemiosmotic hypothesis
chemiosmotic theory
chemiotaxis
chemise
chemises
chemisette
chemisettes
chemism
chemisms
chemisorb
chemisorbed

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